Examlex
The adaptive significance of the crossed extensor reflex when a person steps on a tack is to
Unconditioned Stimulus
In classical conditioning, a stimulus that naturally and automatically triggers a response without any need for prior learning.
White Rat
Traditionally used in scientific research, especially in psychology and behavioral studies, due to its ease of handling and consistent biological traits.
Loud Noise
Sound that is at a high volume level, potentially causing disturbance or discomfort.
Startle and Fear Response
A physiological and psychological reaction to unexpected stimuli or perceived threats, involving autonomic nervous system activation.
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